Refund not received

I had booked flight tickets using my credit card in November 2015 for flight date 14/12/2015. The airline that I had used is Skywise and it had been grounded before I could use it. <br> <br> ABSA had advised me that a refund will only be processed once flight date had passed. I sent email to disputes department after the flight date advising them the service was not honoured and that they could proceed in refunding me. Dealt with Nelly Skosana and Nicole Petersen who advised me to send ticket or booking confirmation of the scheduled flight and i had sent them all the required information. Until today i have not received any feedback from them. I've also called numerous times to the credit card department for feedback but they were not able to provide feedback as disputes department is a seperate department from them. Disputes department do not take calls so i'm not sure what more i need to do to get my money back.<br> <br> The service I've received from ABSA is appalling, for a loyal customer who's been with ABSA for many years I feel I do not deserve the pathetic service I've received from them. Please pay back my money or else i'll close all my accounts with you.